Electro-optical device and electronic equipment
US6521913B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 21, 2000 |
| Grant date | Feb 18, 2003 |
| Priority date | — |
| Expiry date | Jul 21, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/8063
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An active matrix driven electro-optical device, such as a liquid crystal device, is provided which is able to add sufficient storage capacitance to pixel electrodes and to decrease the diameter of contact holes connecting with pixel electrodes, even when a fine pixel pitch is employed. The liquid crystal device has TFTs, data lines, scanning lines, storage capacitor lines, and pixel electrodes provided on a TFT array substrate. Each of the pixel electrodes is electrically connected to one of the TFTs by two contact holes through a barrier layer. A part of a semiconductor layer and each of the capacitor lines sandwich a first dielectric film and constitute a first storage capacitor, while a part of the barrier layer and each of the capacitor lines sandwich a second dielectric film and constitute a second storage capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.